This photo is linked from:

Discussion on TG4522

Re TG4522 : Horsey Drainage Mill (National Trust), is this the one that features on the current RAC advert for in-car activities for kids to play? The advert shows something like this location, but the road appears to run to the left of shot in a very straight line with the mill on the right. The cut wuth the boats moored on it looks from the advert to run exactly parallel to the road.